Yes, but he claimed that before the 2016 as well. It wasn't a new claim he made for the 2017 re-run of the election.
[ nitpick ] The (postponed) rerun of the runoff was still in 2016, 4 December. It was postponed from 2 October because of faulty glue on the envelopes with which ballots were mailed or some such.
Austrian word of the year:
Bundespräsidentenstichwahlwiederholungsverschiebung
(federal presidential election runoff re-run postponement).
ETA: is it my browser or the forum software that keeps splitting up that word???
No, it wasn't a new claim. He made it during the campaigning for the first round. But the claim itself should invalidate him with the large majority of the population.
I'm not saying the results are good by any stretch of the imagination, I'm saying Brexit doesn't explain the drop of far-right populism all that well. Trump does. UKIP is a part of that.
As the two processes (Trump and Brexit) are largely coincidental, it's hard to give an explanation which of them induces voters not to vote for brownshirts.
Yeh, semantics

It's a significant drop, if it's hammering or not is debatable.
I'd say it seems like the rise of "far-right populism" (I prefer to plainly call it fascism) is checked, but we need to wait to see if that bears out.
The country where Hitler was born and raised was far larger and a major European power. The country now doesn't even encompass all of the lands called Austria in that state.
Yes I know. Must I rephrase that more explicitly?
Austria, as a country on the whole, was a willing accomplice in Hitler's evil designs. Austrians were happy about the Anschluss. 13% of the SS personnel were Austrians, whereas they were only 8% of the population. Kaltenbrunner, head of the RSHA, and Seyss-Inquart, head of the occupied Netherlands, were Austrians, to name a few. After WW2, Austrian politics has tried to shove their shameful history under the table and tried to paint themselves as Hitler's first victim instead of willing accomplice. They've actively sabotaged Allied efforts at denazification in 1945-1954. And finally, the FPÖ was founded as a refuge for ex-Nazis to be politically active.